Refrigerating apparatus



Oct. 25, 1932. H. B. HULL 1,883,922

REFRIGERATING APPARATUS Filed Oct. 31, 1928 2 Sheets-Shee l Oct. 25, 1932. H. B. HULL REFRIGERATING APPARATUS 2 sneetssheet 2 Filed Oct. 51, 1928 REY B. HELL, QB DAYTQN, OHIO, AQSIGNOB I FBIGIDAIBE fifiRPOMTEQF, 0F

DAYTQH, @MO, A CQBPQRATIQN OB DELAWARE FBIGTINQ APIPTUS Application filed catcher $31 1928. Serial Ho. 3183M.

is invention relates to regereting spperetus particularly to compressors and driv-' ing means therefor.

@ne of the objects of the invention is to provide on improved means for reducing the noise incident to the operation of apparatus of this type.

More specifically it is an object of the invention'to enclose the noisy dparts or n refrigm eretmg epperstus m e soun absorbing housmg and to provide an improved means for dissipating the heat generated within the housing.

Another object of the invention is to provide sound absorbing means of e character indicated which is readily removable from the refrigerating apparatus to permit inspection end adjustment.

Another object of the invention is to provide a sound absorbing housing for enclos ing the noisy ports of o refrigerating appsretus end exposing to the etmos here heat generating parts which do not me e noise.

I Still snother object is to provide an im- Q3 proved arrangement for cooling such ex posed porter More specifically it is one of the objects of the invention to the power plent within the housing for cooling the parts outside of the housin Another object is to transmit power throu h the well of the housingto cool parts outside of the housing without direct mechenicel connection between the prime mover 35 end the driven element.

Further objects and edventeges of the resent invention will be apparent from the rollowing description, reference being bad to the sccompenymg drewlngs, wherein a pre no ferred form of the present invention is clearly shown. B

In the drewmgs: Fig. l is e horizontal section of e refrigerstin s sretus constructed accordance to with the invention;

Fig. 2 is s vertical section or the apparatus shown in Fig. l;

Fig. 3 is e section corresponding to Fit l of e modified formed the spperetus this to re being taken on the line 3-3 of Fig. 4;

provide means actuated by Fig. is efi section of the line d-s of Fig.

pressor is a condenser 18 which receives compressed gaseous refrigerant from the compressor, cools and li uefies the refrigerant and discharges the re irigerant to a. receiver or reservoir 19. If desired, for the sake of convenience, the receiver may be mounted on a pair of brackets 20 supported in the base 10. The brackets 20 also support a housing 22 containing a switch for controlling the motor. Since it is the motor, compressor and switch of the moving parts which make noise in operation, I proposeto prevent annoyance by preventing such noise from transmitting to occupied rooms. This may be accomplished by completely enclosing the no parts of the apparatus in o housin whic prevents the transmission of sound rom the apparatus to distant points. As shown in the drewin s this housing may include e base 25 upon wiich the apperetus is. supported, and s housing proper consisting of side walls 26 and u cover 27. The loose end housing may be made of any suitable materiel, preferably some .materiel which absorbs sound waves and prevents the transmission of sound through the. housing.

Since the motor, compressor and condenser all generate heat during operation and since this best must be removed, I provide means for dissipating to the outside atmosphere heat generated. Since the condenser does not make noise this may be placed outside of the manner. I

' grooved strip 35 of so refer to hermetically seal the interior of t e housing in order to prevent transmission of sound therefrom. ,Therefore the joint at'the housing and base 25 is sealed .in any suitable manner, as for example, by flexible sealin means such as a rubber which fits tightly in a groove in the base 25 and the grooved part of the strip is adapted to sun 1y embrace the bottom of the housing. Suita le openings 39. are provided in the rubber strip through which thepipes may extend andthe strip may be slit upwardly from these openings if desired, so as to permit the removal o the pipes. One of the walls 26 is formed with a re-entrant portion-28 which provides a discharge chamber 29 and an inlet chamber 30. The discharge chamber 29 is separated from the rest of the housing by means of a partition 31 provided with an opening to receive the fan. Tubes 33 provlded with fins 34 lead from the discharge to the inlet outside of the housing and provide heat exchange means associated with the outside atmos here for dissipating the heat enerated wit 'u the housing. The fan circu ates air through the housing into the discharge chamber 29, into the passage along the tubes 33 and is cooled therein and enters the chamber 30 as cooled air which ain passes over the apparatus and absorbs eat therefrom.

If desired, for example, in an apparatus of a lar e capacity additional means ma be provided for cooling the condenser outside of the housing. As shown in Fi 5 fan 40 driven by motor 41 is mounted a jacent the condenser. The motor 41 being connected in parallel with the motor 12 and controlledby the same switch, conse uently, whenever the motor 12 is running, t at is, when the comressor is being operated to cool the conenser it ma be advanta cons to mount the condenser a j acent the tu 33 in order that the air from the fan 40 may assist in circulating air over the tubes. Still another arrangement for cooling the condenser outside the housing is shown in Figs. 3 and 4. p In this arrangement a bearin 43 is supported inv one of the walls 26 an carries apower shaft 44 extending throu h the wall into the dischar chamber 29. mounte on the inside of the shaft adjacent the fan 31a and in the ath of the air stream whenever the fan 31a is operating and thus imparts'power to a fan 46 on the outer end of the shaft adjacent the condenser. This arrangement provides a simple and economical means for transmitting power from the motor within the housing to a motor for driving the condenser fan and obvious] does not interfere with the removability o the housing.

While the form of emb 'ment of the invention as herein disclosed constitutes a pre ferred form, it is to be understood that other wind wheel 45 is forms might be adopted, all coming within the scope of the claims which follow.

What is claimed is as follows:

1. Refrigerating apparatus comprising in combination a compressor, means for driving the compressor, a housing completely inclosing the compressor and driving means, said housing including at least one passa e in heat exchange relation with the outside atmosfphere and means for circulatin the air conned in the housing through sai passage and over the compressor and driving means.

2. Refrigerating apparatus comprising in combination a com ressor, means for driving the compressor, a ousin completely inclosing the compressor and riving means, said housing including at least one passa e in heat exchange relation with the outsi e atmosphere, and means actuated by the driving means for circulatin the air confined in the housing through sai passage and over th compressor and driving means.

3. Refrigerating apparatus comprising in I combination a compressor, means for driving the compressor, a housing completely inclosing the compressor and driving means, a tube connected at both ends with the housing and disposed outside said housing and means for circulating the air confined in the housing through said tube and over the compressor and driving means.

4. Refrigerating apparatus comprising in combination a compressor, means for driving -the compressor, a housing completely inclosing the compressor and riving means, said housin includi a re-entrant wall providing in ct and ischarge chambers within said housing, a tube connecting the chambers outside of the housing, and means for impelling the air confined in the housing into thedischarge chamber.

5. Refrigerating apparatus comprising in combination a compressor, means for driving the compressor, a housing completely inclosing the com ressor and driving means, a condenser outside the housingconnected to the compressor, a power transmitting memberextending through a wall of the housing, a fan actuated by said drivin means for c1r culating the air confined within the h9usmg, a wind wheel on the power transmitting member disposed in the air stream of the fan, and

messes the compressor, a housin completely enclosing the compressor an driving means, a

condenser outsifie of said housing and con neoied to said compressor, meems actuated by said driving means for circulating air within said housing and means octueited by the circulating air within the housing for circulating air over saiei conoemsei.

In testimony whereof 1 hereto efix my signature. 

